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Medical Diagnosis Based on Multi-Attribute Group Decision-Making Using Extension Fuzzy Sets,Aggregation Operators and Basic Uncertainty Information Granule
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作者 Anastasios Dounis Ioannis Palaiothodoros Anna Panagiotou 《Computer Modeling in Engineering & Sciences》 SCIE EI 2025年第1期759-811,共53页
Accurate medical diagnosis,which involves identifying diseases based on patient symptoms,is often hindered by uncertainties in data interpretation and retrieval.Advanced fuzzy set theories have emerged as effective to... Accurate medical diagnosis,which involves identifying diseases based on patient symptoms,is often hindered by uncertainties in data interpretation and retrieval.Advanced fuzzy set theories have emerged as effective tools to address these challenges.In this paper,new mathematical approaches for handling uncertainty in medical diagnosis are introduced using q-rung orthopair fuzzy sets(q-ROFS)and interval-valued q-rung orthopair fuzzy sets(IVq-ROFS).Three aggregation operators are proposed in our methodologies:the q-ROF weighted averaging(q-ROFWA),the q-ROF weighted geometric(q-ROFWG),and the q-ROF weighted neutrality averaging(qROFWNA),which enhance decision-making under uncertainty.These operators are paired with ranking methods such as the similarity measure,score function,and inverse score function to improve the accuracy of disease identification.Additionally,the impact of varying q-rung values is explored through a sensitivity analysis,extending the analysis beyond the typical maximum value of 3.The Basic Uncertain Information(BUI)method is employed to simulate expert opinions,and aggregation operators are used to combine these opinions in a group decisionmaking context.Our results provide a comprehensive comparison of methodologies,highlighting their strengths and limitations in diagnosing diseases based on uncertain patient data. 展开更多
关键词 Medical diagnosis multi-attribute group decision-making(MAGDM) q-rofs IVq-rofs BUI aggregation operators similarity measures inverse score function
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Pattern recognition of financial innovation life cycle for renewable energy investments with integer code series and multiple technology S-curves based on Q-ROF DEMATEL
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作者 Gang Kou Hasan Dincer Serhat Yüksel 《Financial Innovation》 2024年第1期2828-2849,共22页
The current study evaluates the financial innovation life cycle for renewable energy investments.A novel model is proposed that has two stages.First,the financial innovation life cycle is weighted by the two-generatio... The current study evaluates the financial innovation life cycle for renewable energy investments.A novel model is proposed that has two stages.First,the financial innovation life cycle is weighted by the two-generation technology S-curve(TTSC)for renewable energy investments.Second,the TTSC is ranked with integer patterns for renewable energy investments.For this purpose,the decision-making trial and evaluation laboratory(DEMATEL)is considered with q-rung orthopair fuzzy sets(q-ROFSs).A comparative examination is then performed using intuitionistic and Pythagorean fuzzy sets,and we find similar results for all fuzzy sets.Hence,the suggested model is reliable and coherent.Maturity phase 1 is the most significant phase of the financial innovation life cycle for these projects.Aging is the most important period for financial innovation in renewable energy investment projects—renewable energy companies should make strategic decisions after that point.In this situation,decisions should relate to either radical or incremental innovation.If companies do not make decisions during these phases,innovative financial products cannot be improved.As a result,renewable energy companies will not prefer financing products. 展开更多
关键词 Renewable energy investments q-rof sets DEMATEL Financial innovation
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广义q-ROF TODIM方法及应用 被引量:5
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作者 刘熠 秦亚 +1 位作者 刘好斌 许雷 《控制与决策》 EI CSCD 北大核心 2020年第8期2021-2028,共8页
基于Pythagorean模糊迭代多准则决策(TODIM)方法和简化的TODIM方法,首先给出简化的q-ROF TODIM方法,并分析该方法产生的悖论;其次,结合广义TODIM方法的思想,提出广义q-ROF TODIM方法;再次,通过一个实例来说明广义q-ROF TODIM方法的可行... 基于Pythagorean模糊迭代多准则决策(TODIM)方法和简化的TODIM方法,首先给出简化的q-ROF TODIM方法,并分析该方法产生的悖论;其次,结合广义TODIM方法的思想,提出广义q-ROF TODIM方法;再次,通过一个实例来说明广义q-ROF TODIM方法的可行性和有效性;最后,结合该实例,将所提出的方法与其他q-ROF决策方法进行比较分析,同时分析参数的变化对决策结果的影响,进一步阐明所提出方法的优越性. 展开更多
关键词 不确定性 多准则决策 q-rof 广义TODIM方法
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基于q阶orthopair模糊集和参考理想法的多准则决策方法 被引量:1
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作者 王浩伦 张发明 +1 位作者 完颜晓盼 韩雪 《中国管理科学》 CSSCI CSCD 北大核心 2023年第10期245-253,共9页
针对现有决策方法理想解确定不合理和秩反转的问题,提出一种基于q阶orthopair模糊集(q-rung orthopair fuzzy set,q-ROFS)和参考理想法(reference ideal method,RIM)的多准则决策方法。在q-ROFS概念基础上分别定义了q-ROF可能度和q-ROF... 针对现有决策方法理想解确定不合理和秩反转的问题,提出一种基于q阶orthopair模糊集(q-rung orthopair fuzzy set,q-ROFS)和参考理想法(reference ideal method,RIM)的多准则决策方法。在q-ROFS概念基础上分别定义了q-ROF可能度和q-ROFS交叉熵,并讨论其相关性质;将传统RIM在q-ROF环境下进行扩展,构建一种基于q-ROFRIM的多准则决策模型,利用q-ROF可能度确定准则最优权重以及作为q-ROF信息差异程度测度的q-ROF交叉熵替代传统RIM中距离测度。最后通过实例分析说明该方法可行和有效,方法对比结果表明,所提方法不仅使决策过程更加科学和合理,而且能够解决秩反转问题。 展开更多
关键词 q-rofs q-rof可能度 q-rofs交叉熵 q-rofRIM 多准则决策
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